<template>
  <nav>
    <router-link to="/">Home</router-link> |
    <router-link to="/about">About</router-link>
  </nav>
  <router-view/>
</template>
<script >
// 解决ERROR ResizeObserver loop completed with undelivered notifications.

//问题的

const debounce = (fn, delay) => {
let timer = null;

return function () {
let context = this;

let args = arguments;

clearTimeout(timer);

timer = setTimeout(function () {
fn.apply(context, args);
}, delay);
};
};

// 解决ERROR ResizeObserver loop completed with undelivered notifications.

const _ResizeObserver = window.ResizeObserver;

window.ResizeObserver = class ResizeObserver extends _ResizeObserver {
constructor(callback) {
callback = debounce(callback, 16);

super(callback);
}
};
</script >

<style>
#app {
  font-family: Avenir, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
}

nav {
  padding: 30px;
}

nav a {
  font-weight: bold;
  color: #2c3e50;
}

nav a.router-link-exact-active {
  color: #42b983;
}
</style>
